That's incredible.Here's another even more happy thing you can't do any other way:
View attachment 16753
You don't even want to imagine executing a five pole Butterworth bandpass in passive, especially at these frequencies. You'd have capacitors the size of cantaloupes and inductors the size of bundt cakes. Plus, again, it would be pointless because it would suck.
So, what's the reason for wanting two bands in the bass? There's really no such thing as a driver that is both competent at 20Hz and can articulate at 200Hz. And vice versa. Heretofore there hasn't been a solution so, again, a lot of splitting of babies.....never has anyone totally nailed it in the bass. The state of the art has been just sorta OK.
This solution is our Trademark: Dual Band Bass. It solves the problem elegantly in a single stroke. This does not sound like any bass system you've ever heard. It kinda takes your breath away. So far, this has proven a remarkably effective sales tool. Guys who experience it immediately shift their expectations of low frequency performance, spoiled, they find a way to buy it. Ha, ha, ha....I know it's bad....but I do it anyway :-)